Software Engineer
Based in Istanbul
Istanbul
Umur Köse
Building web and mobile products: design systems, motion, interfaces, and custom architectures for people and AI Agents.
Selected work. Made to be played with.
See allWhat I do. From token to tap.
Design systems.
Change one token, every screen follows.Tokens, components, themes
Motion.
Every detail, considered. Every tap gets a response.Springs, gestures, transitions
Interfaces.
Web and mobile products, from the first sketch to the last pixel.React, Next.js, Expo, Vue, Nuxt
Engineering.
Backends, APIs and custom architectures for people and AI agents.Node.js, Cloudflare Workers, Hono
Notes. Step-by-step guides.
All notesNext.js SEO Guide
The complete guide to SEO and AI visibility in Next.js 16 App Router: rank in search, show up in AI answers, and let your AI agent apply it for you.
Form Backend API
Forminit is a form backend API that handles submissions, validation, file uploads, spam protection and notifications. Learn how to add a working contact form to HTML, React or Next.js without building a backend.
Toolkit. Free, no sign-up.
All toolsBuilding for every time zone.
Have a project in mind?
Say hi, I would love to hear from you.
Find me on